body { text-align: center; font-family:sans-serif; }
a img { border: none; }
#text { margin-left:50px; margin-right:50px; }
.vertically-centred { position: absolute;
  top: 0; right: 0; bottom: 0; left: 0; width: 600; height: 427;
  margin: auto; background-color: black; color: white; }